Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA.
Graduate School of Science and Engineering, Department of Chemistry and BioScience, Kagoshima University, Kagoshima 890-0065, Japan.
Science. 2014 Jun 6;344(6188):1154-6. doi: 10.1126/science.1252697.
We report that the Japanese sea catfish Plotosus japonicus senses local pH-associated increases in H(+)/CO2 equating to a decrease of ≤0.1 pH unit in ambient seawater. We demonstrated that these sensors, located on the external body of the fish, detect undamaged cryptic respiring prey, such as polychaete worms. Sensitivity is maximal at the natural pH of seawater (pH 8.1 to 8.2) and decreases dramatically in seawater with a pH <8.0.
我们报告称，日本海鲶鱼 Plotosus japonicus 能够感知与局部 pH 值相关的 H(+) / CO2 增加，相当于环境海水中 pH 值降低了≤0.1 个单位。我们证明了这些位于鱼体外的传感器可以检测到未受损的隐蔽呼吸猎物，如多毛类蠕虫。在海水的自然 pH 值（8.1 到 8.2）下，传感器的灵敏度最高，而在 pH 值<8.0 的海水中，灵敏度则急剧下降。
